diff options
| -rw-r--r-- | Makefile | 16 | ||||
| -rw-r--r-- | zombie.c | 12 |
2 files changed, 23 insertions, 5 deletions
@@ -33,7 +33,8 @@ CC = $(TOOLPREFIX)gcc LD = $(TOOLPREFIX)ld OBJCOPY = $(TOOLPREFIX)objcopy OBJDUMP = $(TOOLPREFIX)objdump -CFLAGS = -fno-builtin -O2 -Wall -MD +# On newer gcc you may need to add -fno-stack-protector to $(CFLAGS) +CFLAGS = -fno-builtin -O2 -Wall -MD -fno-stack-protector AS = $(TOOLPREFIX)gas xv6.img : bootblock kernel fs.img @@ -99,19 +100,24 @@ _rm : rm.o $(ULIB) $(LD) -N -e main -Ttext 0 -o _rm rm.o $(ULIB) $(OBJDUMP) -S _rm > rm.asm +_zombie: zombie.o $(ULIB) + $(LD) -N -e main -Ttext 0 -o _zombie zombie.o $(ULIB) + $(OBJDUMP) -S _zombie > zombie.asm + mkfs : mkfs.c fs.h cc -o mkfs mkfs.c -fs.img : mkfs usertests _echo _cat README _init _sh _ls _mkdir _rm - ./mkfs fs.img usertests _echo _cat README _init _sh _ls _mkdir _rm +UPROGS=usertests _echo _cat _init _sh _ls _mkdir _rm _zombie +fs.img : mkfs README $(UPROGS) + ./mkfs fs.img README $(UPROGS) -include *.d clean : rm -f *.ps *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \ *.o *.d *.asm vectors.S parport.out \ - bootblock kernel xv6.img usertests \ - fs.img _cat _echo _init _sh _ls _rm _mkdir mkfs + bootblock kernel xv6.img fs.img mkfs \ + $(UPROGS) # make a printout PRINT = \ diff --git a/zombie.c b/zombie.c new file mode 100644 index 0000000..0f3b4a3 --- /dev/null +++ b/zombie.c @@ -0,0 +1,12 @@ +// Create a zombie process. + +#include "types.h" +#include "stat.h" +#include "user.h" + +int +main(void) +{ + fork(); + exit(); +} |